Help stress-testing a DOMscripting helper library / object

Following a thread on the evolt list about reading the next sibling element of a current element and making sure it really is an element and not a text node (line break), I decided to add a small helper object to my upcoming JavaScript book that takes care of some of these issues. Give it a try: DOMhelp My questions now are:

• Is that something that really can help save beginners frustration

about different browsers and DOM oddities?

• Is it pretty bullet proof?
• can you think of other methods that should be in there?

I promise to add a greeting, should you come up with something I forgot or find out I did wrong. I don’t get many free copies though… :-) I am aware that there are a lot of libraries already out there, but most of them are just too massive to use in a beginner book.